Improvement in dampers



A. J. REDWAY,

' Damper.

um-214,523. Patented April 22,1 79.

ALBERT J. REDIVAY, OF AVONDALE, ASSIGNOR TO REDIVAY & BURTO or CINCINNATI, ouro;

IMPROVEMENT 'IN DAM PERS.

Specification forming part of Letters Iiatcnt No. 214,523, dated April 22, 1879; application filed July 2, 1878.

To all whom it may concern:

Be it known that I, ALBERT J. REDWAY, of the village of -Avondale, county of Hamilton and State of Ohio, and doing business in ways opening the direct draft before opening the stove-door; but thisoperation is not always known, or remembered when known, nor

is it at all times convenient or even possible.

My invention consists in providing a stove with an automatic damper, which will always open the direct draft when the stove-door is opened.

In the accompanying drawings, Figure 1- represents a perspective view of a stove embodying my improvement, a portion of the side ofthe stove being broken away to show the parts connected with the automatic damper. In this view the pipe and damper are placed at the side of the stove.

Fig. 2 is a vertical sectional view of a portion of a stove, showing my invention as adapted to a stove in which the pipe and damper are placed at the rear. Fig. 3 is a top view of the stove shown in Fig. 2.

A represents a. stove, having a door, 13. The stove is provided with an inner lining, forming a flue, which begins at the left-hand side of the stove in Fig. 1, passes downward and up on the other side of the stove, the top on this latter side being closed by any suitable cap, 0, except where the bonnet D rises and laps over the lower portion of the opening E, surrounded by the neck F, over which the pipe fits. The opening E extends above the top of bonnet D, forming the direct draft of the stove. The inner or straight edge of the damper Gr rests on the edge of the top of bonnet D, as shown in Fig. 1. The damper is provided with two handles, g, which project through the neck F on each side, one only being shown in the drawings, and form the axis about which the damper moves.

When the damper G is raised it covers the upper half of opening ,E, resting on the ledge to, leaving the indirect draft through the flue open. When the damper is down, as shown in Fig. 1, it leaves the direct draft through the upper half of opening 113 open, and

I site the center of the upper half of opening E,

and within said opening. The other end of rod H passes through the front of the stove, and is bent at right angles, forming the arm h, which rests on the cam]; cast on the door B. The cam b is of the general shape of an elongated wedge, sharp edge up, as shown in the drawings.

The damper is ordinarily operated by the handles g. However, whenever the door is opened the cam b raises the inner end of arm h, which rotates the rod H, forcing the finger it against the damper G, if it happens to be raised, and throwing the said damper down into the position shown in .Fig. 1, thus always securing a direct draft whenever the door is opened, which is the object of the invention.

WVhen the pipe proceeds from the rear of the stove the arrangement is as shown in Figs. 2 and 3. The fines commence on each side, and communicate, by means of the opening 0, with the space formed by the hood P. i

The damper G is provided with a beveled projection, against which the arm h of rod H strikes, when the door opens and rotates the rod H, thereby opening the direct draft of the stove. As the damper G is provided with handles y, it can always be operated by hand independently of the automatic device, which is evidently a great advantage.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination of rod H, having finger h, and arm M, and cam I), as a device for automatically opening a damper.-

2. The cam 1), arm h and rod H, rotating in the stove, in combination with appropriate independent means for actuating the damper.

3. The rod H, having finger h, in combination with an arm adapted to be operated by the stove-door, substantially as and for the purposes set forth.

4. The cam 1), arm h and rod H, rotating in the stove, in combination with a damper,

substantially as and for the purposes specified. 5. For the purposes specified, the rod H, ro-

tating in the stove, and provided'with arm h,

in combination with the stove-door, provided with a suitable dey ice for moving the arm M, and the hinged damper, whose journal-shaft is provided with a short free arm, whereby said damper may be rotated independently of the door.

ALBERT J. REDWAY. Attest:

' JOHN W. CALDWELL,

W. S. CHRISTOPHER. 

